Spraying machine



Nov. 18, 1952 G. w. DAUGHERTY SPRAYING MACHINE 5 Sheets-Sheet 1 FiledSept. 3, 194'? 7 R 4; l m NJ R WM m 6 A Y B Q Nov. 18, 1952 G. w.DAUGHERTY SPRAYING MACHINE 3 Sheets-Sheet 2 Filed Sept. 3, 1947 m n Ta Nm W n 6 A SPRAYING MACHINE 3 Sheets-Sheet 3 NQ 8 E Q Q N G. W DAUGHERTYNov. 18, 1952 Filed Sept. 5, 1947 INVENTOR 6. 14 4 9437 ATTORNEYPatented Nov. 18, 1952 UNITED STATES PATENT, OFFICE SPRAYING MACHINEGeorge W. Daugherty, Orlando, Fla., assignor to Food Machinery andChemical Corporation, San Jose, Calif., a corporation of DelawareApplication September 3, 1947, Serial N 0. 771,970

4 Claims. 1

This invention relates to a spraying machine of the general type setforth in my earlier application, Serial No. 639,949 filed January 9,1946, now Patent No. 2,476,960 dated July 26, 1949. In my earlierapplication I show and claim a novel type of air blast creating meansfunctioning in combination with novel air blast guide means and meansfor feeding spraying and dusting material to the said air blast to bepicked up and carried toward foliage.

The invention of the present application relates more particularlytomeans whereby the invention of my earlier application may be bestutilized in a spraying machine. Thus, it is the object of this inventionto contribute to the art effective means for utilizing in a sprayingmachine the air blast developing and guide means of my earlierinvention.

As a feature of my invention whereby the objects thereof are attained, Iutilize the spray carrying tank of a sprayingmachine as a part of themeans for supporting the air blast creating means in proper operatingposition. As still a further feature of the invention, the tank isutilized also for supporting in proper operating position the air blastguide means or air deflecting means.

As a still further feature of the invention, the tank containing thespraying material of my machine is utilized to balance the sprayingmachine and is particularly equipped to allow the passage of shaft meanst-herethrough for actuating the air blast creating means.

A still further feature of my invention resides in the particularformation of the chassis of the machine whereby to protect the air blastcreating means during the movement of the machine.

through an orange grove, orchard, or the like.

I have thus outlined rather broadly the more importantfeatures of myinvention in order that the detailed description thereof that followsmay be better understood, and in order that my contribution to the artmay be better appreciated. There are, of course, additional features'ofmy invention that will be described hereinafter and which will form thesubject of the claims appended hereto. Those skilled in the art willappreciate that the conception on which my disclosure is based mayreadily be utilized as a basis for the designing of other structures forcarrying out the several purposes of my invention. It is important,therefore, that the claims to be granted me shall be of sufficientbreadth to prevent the appropriation of my invention by those skilled inthe art.

Referring now to the drawings, Fig. 1 is a vertical elevation of aspraying machine embodying my invention. Fig. 2 is an end view of themachine of Fig. 1. Fig. 3 is a section taken along lines 33 of Fig. 2.Fig. 4 is an enlarged view of part of the structure shown in Fig. 3.

Referring now more particularly to the drawbest shown in Fig. 3. Theleft hand end of the tank I4 is concave as best seen in Fig. 1 and isdesignated by reference numeral [6.

At the forward end of the machine there mounted an internal combustionengine I! equipped with the usual accessories and adapted to drive ashaft 18 through means of a flexible coupling I9. The engine I! is alsoadapted to drive a pump whereby to supply liquid spraying material to aseries of spray carrying pipes hereinafter to be described. The meanswhereby the pump is operated, and the means whereby the shaft I8 isactuated, are well shown in earlier patents and patent applicationsfiled by me, and are not herein described in detail for that reason.

The tank M has extending centrally therethrough a sleeve 20 welded atits ends to the ends 15 and I6 of the tank. In Fig. 3 there is shown at2| the weld between the right hand end of the sleeve 20 and the righthand end of the tank 15'. The sleeve 26 will be referred to as thepassage sleevesince it forms a passage for the shaft l8 so that the saidshaft may extend through the tank I4 from the internal combustion engineI! to the propeller of the air blast creating means hereinafter to bedescribed.

Welded to the end I5 of the tank 14 is a sleeve 22 that I term a supportsleeve. This support sleeve 22 has welded thereto a circular angularstructural member 23 to which is bolted by :a.

series of bolts 24, a somewhat similar circular angular structuralmember 25. Structural member 25 is secured to the cylindrical shell 26of the air blast creating assembly. From the discussion presented, itwill readily be seen that in'this way the support sleeve 22 may beconsidered as at least partially mounting and supporting the cylindricalshell 26 in its proper operating. position.

Extending from the cylindrical shell 25 is a series of angularly spacedguide plates 21 welded at one end to the cylindrical shell 26 and at theother end to an outer shell 23 that forms the outer surface of what Iterm an air tunnel. This air tunnel may be of any length, but I prefer alength in relation to the other parts such as indicated in the drawings.The right hand end of the outer shell 28 is suitably reinforced bycircularly extending angular structural members 29 and these members 29are in turn secured to a support strut assembly 30 extending upwardlyfrom a portion of the chassis II). In this way the extreme right handend of the air blast creating assembly is well supported from thechassis l and reinforced thereby. Additional strut means extendingbetween the chassis In and the outer shell 28 are shown at 38a in Fig.2.

The cylindrical shell 25 has welded therein, as is probably best setforth in my earlier application, a shelf 3!, and this shelf 3| supportsbearings 32 and 33 for a shaft 34, the shaft 34 being suitably coupledat 350. to the main drive shaft 13. At its right hand end the shaft 34has keyed thereto a hub 35 of a propeller 36 equipped with blades 31.The extreme right hand end of the shaft 34 is considerably smaller insize than the remainder thereof and mounts thereon a spacer sleeve 38whereby to support in position the rounded air guide surface 39rotatable with the propeller 36 and held on shaft 34 by a nut 34a. Itwill now be appreciated that rotation of the shaft [8 and the shaft 34will rotate the propeller 35 so that the blades 31 will effect themovement of a blast of air between the cylindrical shell 26 and theouter shell 28, this blast of air flowing toward the end I of the tank54. For guiding the in-take flow of the blast of air, there is securedto the outer shell 28 through its reinforcing structural members 29, asheet metal guide 49 as is very well shown in Fig. 3. There is alsosecured in position a protective screen 4| held in place by a latch 4la.

The end surface l5 of the tank M has welded thereto as best shown inFigs. 3 and 4 a series of brackets 42 spaced circumferentiallythereabout. Each of these brackets 42 in turn has bolted thereto througha series of bolts 43, the flange 44 of a spinning that forms the part45. Part 45 is a deflector for the air blast generated by the blades 31of propeller 36 and is formed as well illustrated in the drawings tocurve inwardly and radially from the brackets 42 toward the cylindricalshell 26. In effect, the spinning forming the deflector 45 is, whenassembled, substantially a continuation of the cylindrical shell 25.0bviously, the deflector 45 will tend to move the air radially outwardlyof the machine in a manner which is well emphasized in my earlierapplication.

A similar spinning 4G is assembled to the outer shell 28 to formsubstantially a continuation of the said outer shell. As seen, thisspinning is secured to the left hand end of the outer shell 28 throughsuitable bolts 41 and angular structural reinforcing member 48.

Between the deflectors 45 and 46 there is an intermediate deflector 49.This intermediate deflector is formed from two sheet metal spinningsassembled at 50 and at 5!, the two spinnings forming in eifect a singlehollow deflector of proper air guiding design. Deflector 49 is securedto the deflectors 45, 46 by a series of assembly rods 52 and spacersleeves 53, the said rods 52 being threaded at their ends for coactionwith fastening nuts 54, all as well shown in Fig. 3.

It is now obvious that the air blast will flow between the deflectors45, 46, and that the intermediate deflector 49 will be effective inpreventing constriction of the air flow. It will also be noted now thatthe entire deflector system and air tunnel assembly is so positioned inthe machine as to be radially inwardly of the outer periphery of thetank M. This is extremely important because it makes it possible to movethe machine effectively through an orchard, grove or the like, withoutdamage to the trees or the machine.

It is further effective in that it makes it possible to mount inoperating position and without danger from injury thereto, the severalspray feeding pipes designated by reference numeral 55. These pipes 55are secured to main spray feeding pipes 56 extending substantiallycircularly about the end of the tank I4. Actually, the pipes 56 may beconsidered as forming a manifold into which the spraying material isfirst fed from the tank I4 to be dispersed by the several pipes 55. Bymeans of clips 51 secured to the manifolds 56, the said manifolds may bebolted to the brackets 42 that act to support the deflector 45. It willnow be seen that not only does the entire air blast creating assemblylie inwardly of the outer periphery of the tank l4, but that the sprayfeeding means also lie inwardly or substantially at the periphery of thetank I 4. Therefore, a streamlined effect is created that is extremelyhelpful in preventing damage to the machine as it moves through a groveor the like.

The chassis I0 has at its rear a protective pan 60 formed with agenerally flat surface 6| at the left end thereof, this surface taperingupwardly at its right end to form a camming surface 62. When movingthrough a grove, orchard, or the like, should the surface 5| of the pan60 encounter a hillock, the entire machine will be lifted off one orboth its wheels l2. Were the pan 60 to terminate at say the point 63shown in Fig. 3, the entire machine would then be allowed to dropsuddenly against the ground, or until the wheels l2 encountered theground. This sharp drop might very well injure the machine. Through theutilization of the camming surface 62, the machine is eased downwardlyoff the hillock and injury to the machine is consequently avoided. Thisis an extremely important improvement in a machine of the particularclass. For further streamlining of the machine, there 18 secured to theupper portion of the outer shell 28 a sheet metal member 65 the functionof WhlCh will be apparent. I believe that with this explanation of myinvention, the structural features thereof, and the apparently simpleand effective means I have conceived for utilizing the tank of mymachine as an inherent structural portion thereof, will now be apparentto those skillgd in the art. I believe also that the remainmg ea ures ofm inven i understood. 5' t on W111 now be clearly I now claim:

1. In a spraying machine of the clas s described, a cylindrical tank, apassage sleeve in the longitudinal axis of said tank and welded to theends a cylindrical shell of substantially the same diameter as said huband support sleeve posi- 5 tioned in said tunnel between said supportsleeve and hub, and means for feeding spraying material from said tankto the blast of air developed by said propeller and flowing initiallythrough said tunnel.

2. In a spraying machine of the class described, a cylindrical tank, apassage sleeve in the longitudinal axis of said tank to form a throughcentral passage in said tank, a support sleeve having one end surfacethereof secured directly to one end of the tank concentrically with saidpassage sleeve, an air tunnel secured with its longitudinal axis inalignment with said passage and support sleeves, a propeller mounted forrotation in said tunnel in said longitudinal axis and having a centralhub portion, a cylindrical shell substantially the same in diameter assaid hub and support sleeve positioned with one end at said hub and itsother end at the end of the support sleeve, a curved ring-like deflectorfor the blast of air generated by said propeller formed as an extensionof said cylindrical shell and curving outwardly from the end of saidcylindrical shell toward the outer periphery of said tank with thesupport sleeve in support relation thereto, a shaft means extendingthrough said passage sleeve toward said propeller for rotating saidpropeller, and means for feeding spraying material from said tank tosaid deflector directed air blast.

3. In a spraying machine of the class described, a cylindrical tank, asupport sleeve having one end surface thereof secured directly to oneend of the tank, an air tunnel positioned with its longitudinal axis inalignment with said support sleeve and secured to said support sleeve, apropeller mounted for rotation in said tunnel in said longitudinal axis,a curved ring-like deflector for the blast of air generated by saidpropeller extending between said propeller and tank and curvingoutwardly from said propeller toward the outer periphery of said tankwith the support sleeve concentrically inwardly of said deflector and insupport relation thereto, and means for feeding spraying material fromsaid tank to said deflector directed air blast.

4. In a spraying machine of the class described, a cylindrical tank, apassage sleeve in the longitudinal axis of said tank to form a throughpassage in said tank, a support sleeve secured directly and bodily toone end of the tank concentrically with said passage sleeve, an airtunnel secured with its longitudinal axis in alignment with said passageand support sleeves, a propeller mounted for rotation in said tunnel insaid longitudinal axis and having a central hub portion, a curvedring-like deflector extending inwardly radially of said tank andlaterally toward that end of said support sleeve displaced from saidtank and then to a position juxtaposed to the hub of said propeller toform a deflector for the b ast of air generated by said propeller, ashaft means extending through said passage and support sleeves towardsaid propeller for rotating said propeller, and means for feedingspraying material from said tank to said deflector directed air blast.

GEORGE W. DAUGHERTY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,725,085 Johnson Aug. 20, 19292,144,426 Klein Jan. 17, 1939 2,238,120 Launder Apr. 15, 1941 2,288,307Welch et al. June 30, 1942 2,331,107 Daugherty Oct. 5, 1943 2,374,955Raper May 1, 1945 2,398,380 Kisling Apr. 16, 1946 2,429,374 Shade Oct.21, 1947 2,476,960 Daugherty July 26, 1949 2,535,565 Cohn Dec. 26, 1950

